What is the difference between Blowdown Valves (BDV) & Pressure Safety Valve (PSV)
Both BDV and PSV are kind of safety valves. What is PSV? PSV’s are used to automatically release overpressure when the operator is unknown or...
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What is Fire Alarm control panel? What is Sub Fire Alarm Control Panel?
What is Fire alarm system? Fire alarm system is activated by several detectors arranged in several zones, where each zone has one address itself, namely...
Welding Quality control check
The Quality Assurance Plan should include a list of all required welding inspections and identify the responsible party for each task. The Contractor (the Manufacturer...
What are the tasks of a welding Inspector?
Welding inspector are personals who verify the work produced by welders meets specification and guidelines. Welding inspectors perform visual inspections on welded products while visual...
What are fire branches?
The purpose of the branch is to increase the velocity of water and may be defined as “A Metal fittings between hose and the nozzle...
What is Pull Cord Switch?, It’s Working.
Pull Cord Switch is an emergency switch to stop the conveyor instantly in any dangerous condition or when an accident occurs. Since the traction cable...
What are Coal feeders? Principle, components.
What are coal feeders? Coal Feeder is a device that regulates the amount of coal to be supplied into the Coal Mill. The amount of...
What is SIS (Safety Instrumentation System)?
Safety instrumented system (SIS) is a system designed to monitor dangerous conditions in a plant (operation unit) and take action in the event of a...
Pitot tube, working, advantages and disadvantages
Pitot tube is a device used to measure the fluid flow measurement invented by Henri Pitot, a French engineer in 18th century. It is widely to...
Direct Acting Solenoid – How it works? Applications
What is Direct Acting ? Direct acting means that valves uses a power supply to open and close. Power is transformed into magnetic force,in...